Resilient connecter



Aug. 25, 1931. H. D. GEYER 1,820,133

RESILIENT CONNECTER Filed Oct. 17, 1929 na as. rat.

INLAND MANUFACTURING or DELAWARE RESILIENT CONNECTER Application filedOctober 17, 1929. Serial No. 400,423.

This invention relates to metal-isolating resilient connecter unitsadapted to be manufactured as a unit and readily assembled in place inthe manner of an ordinary connecter Q fitting for mounting any memberupon its support.

An object of the invention is to provide a very simple and eiiicientresilient connecter unit which can be manufactured at a rel- 10 ativelylow cost.

Another object is to provide such a resilient connecter whereintheelastic material is permanently compressed to the desired initialcompression when the unit is made and is neither requires nor permitsfurther adjustment of this initial compression at any later time,whereby improper adjustment by unskilled persons is prevented.

A further object is to provide such a conm necter wherein the resilientmaterial transmits vertical loads by a shearing strcss thereupon, thevertical areas under such shear stress'being relatively large comparedto the horizontal areas to reduce the shear stress per ll unit area andto prevent excessive movement between the connected parts.

Further objects and advantages of the present invention will be apparentfrom the following description, reference being bad to the accompanyingdrawings. wherein a preferred embodiment of one form of the i v presentinvention is clearly shown.

In the drawings: Fig. 1 shows the resilient connector of this Itinvention assembled in place and connecting a portion of an automobileengine upon its su iporting chassis frame member.

1 2 is a side elevation of the connccter of Fig. 1 but shows a portionbroken away 0 to more clearly illustrate the interior struc-v ture.

Fig. 3 is a horizontal section on line 33 m of Figs. 1 and 2.

Similar reference characters refer to simi- 45 lar parts throughout theseveral views.

Numeral marks the pressed metal memher which is rigidly fixed to thechassis frame member 11 by means of the bolt 12, lockwasher 13, and nut14. Member l0 has two 50 elongated vertical flanges 15 projectinglaterally outwardly from opposite sides thereof. Preferably at an angleof more than 90 degrees so that they are inclined at an acute angle tothe sides 16 of member 10, as clearly shown in Fig. 3. This backwardinclination of flanges 15 makes for rigidity and strength of member 10and also provides for a better interlocking of said flanges with thesecond pressed metal member 20 as will hereinafter appear. I

This second pressed metal member 20 is rigidly fixed toa verticalsurface 21 of a portion of the engine by means of the two bolts 22, asclearly illustrated. Access to the bolts 22 with a socket wrench isobtained by passing the socket wrencn in between the two sides 16 ofmember 10 (see Figs. 1 and .3).

Access to the bolt head 12 with a socket Wrench is obtained in a similarmanner with the shank of the wrench extending vertically. Two elongatedresilient rubber blocks 30 fit snugly around the two laterallyprojecting flanges 15 and are held under a permanent initial highcompression by the flanges 25 being bent around the rubber blocks andcompressing the same upon both sides of the vertical flanges 15', asclearly illustrated. (lbviously the rubber blocks 30 isolate member 10from member 20 and provide a. resilient connection. therebetweentransmission of sound or other high frequency vibrations from the engineto the chassis frame. The degree of compression of the rubber is suchthat the connection is sufficiently solid to properly support the enginewithout material movement in the elastic connection so that the enginewill be maintained in proper alignment. Preferably flanges 15 each havea series of or apertures 19 into which the resilient rubber 30 is forcedby the high compression to which it is subjected see Fig. 3). It will benoted that, since flanges 15 and 25 are vertical or substantiallyvertical, the weight load of the engine will be taken by the resistanceof the resilient blocks 30 to a shearing stress. Of course the highcompression on the rubber is such that there Wlll be a non-slippingilanges 15 are bent outwardlyv which prevents small recessesv tillapplied load is put upon the connecter.

The members 10 and stampings and are cheaply faces of both the interiorflanges 15 and the exterior flanges 25 and hence all relative movementbetween members 10 and 20 is taken by an internal shearing distortion inthe resilient rubber. For this reason the vertical surfaces-of therubber which are sub- I jected to such shearing stresses are made largerelative to the horizontal surfaces thereof, whereby the volume orweight of rubber in the connecter is used to the greatest advantage. Itwill be clear that horizontal loads upon the connecter in any directionwill be taken by a direct compression in the rubber on one of thesurfaces of the curved flanges 15. When flanges 25 are bent around andforced down upon the rubber blocks 30 to highly compress the same, theresilient rubber is materially distorted and caused to flow or bulgeoutwardly as the unconfined edges as shown at the bulges 31 and 32 (seeFig. The rubber fibers at the outer portions of these bulges 31 and 32are therefore bowed out under tension, which tension resists furtheroutward bulging of the rubber when Bthe or this reason the resilientrubber will not be subjected to material movement or strain undervariation in applied load and hence its useful, life will be greatlyincreased. It

. will be noted that vertical loads upon the connecter (which in thiscase are the principal loads) put only a shearing stress upon the rubberwhich cause further outward bulging of the rubber at points 31 and 32.In the manufacture of this connecter, the

resilient rubber blocks 30 are preferably molded approximately to shapebut of slightlv thicker section than as shown in Fig. 3. 20 are pressedmetal made by wellknownmethods. The two molded blocks 30 are slippedupon the two projecting flanges 15 of member 10 and then this assemblyis inserted within the member 20 which, at this stage of manufacture,has its flanges 25 not yet bent down so as to permit this insertion ofparts 10 and 30. The next step is the bending of flanges 25 around therubber blocks 30 and the interior flanges 15 putting the rubber under ahigh internal compression and has little or no tendency to a preferredform, it is to be understood that other forms might be adopted, allcoming within the scope of the claims which follow.

What is claimed is as follows;

1. A vibration absorbing resilient connecter connecting two parts forpreventing transmission of vibrations therebetween, comprising: a metalmember fixed to one of said connected parts and having two laterallyprojecting substantially vertical flanges on opposite sides thereof,elastic rubber material encasing said vertical flanges, and a secondmetal member fixed to the-other of said connected parts and isolatedfrom said first memher and having portions thereof bent around theoutside edges of said vertical flanges so as to clamp the rubbermaterial under a permanent high compression, whereby vertical loads uponthe connecter are sustained.

2. A vibration absorbing resilient connecter connecting two parts forpreventing transmission of vibrations therebetween, comprising: a metalmember fixed to one of said connected parts and having two flangesprojecting' outwardly from oppositesides thereof, non-metallic elasticmaterial surrounding both sides and the outer edge of each of said Intestimony whereof I hereto afiix my signature.

HARVEY D. GEYER.

causing a tight nonslipping bond between the I rubber and its confiningmetal walls. This final bending of flanges 25 to permanently assembleall the parts of the connecter can be simply and efiiciently done by asuitable die press in a manner well known to those skilled in the art.The resilient connecter will

